EPA-Kit (Ver. 3 - updated October 2009)NOW INCLUDES BASINS V. 4.0 AND THE OPEN SOURCE GIS MAPWINDOW!!
A collection of more than 30 programs and manuals for modeling groundwater flow and contaminant transport, geochemistry, and other good
things. NO DEMO PROGRAMS! All programs are fully functional and include complete
documentation.

For teachers, an excellent core for your groundwater
course!
U.S. EPA Center for Subsurface Modeling
Support (CSMOS)